Re: [ATM] Maksutof corrector minimum thickness

[Ken Hunter <atm_ken_hunter@yahoo.com>]

I was told and believe that the glass I have is
"better than" optical grade. It is supposed to have
less absorbtion of the Infrared part of the spectrum. 

I do not have any documentation that proves this but I
can supply small samples for testing. The index was
marked on the glass as 1.4600 if that helps. I do not
know at what wavelength though, I'm assuming 550nm.

Ken Hunter


--- Dominic-Luc Webb <dlwebb@canit.se> wrote:

> 
> > If I have a Fused Quartz blank 20 inches diameter
> and
> > 2.375 thick, can it be generated into a corrector
> for
> > a 20 inch Maksutov?
> 
> One other issue. Maybe you could be slightly more
> specific
> about the optical pieces you have? Alternatively,
> maybe we
> could agree for this discussion on one of the types
> describes
> online, such as:
> 
> http://www.sciner.com/Opticsland/FS.htm
> 
> At that site,, there is a glass refeerred to as KV
> (optical grade
> quartz). For future reference, and in the case I try
> out these
> numbers, can we agree on this particular material?
> 
> Dominic-Luc Webb
> 
> 



		
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